[llvm-nm][docs] Document -W and -U

Latest GNU nm (milestone: 2.39) has added -W/--no-weak and changed -U to mean
--defined-only (instead of --unicode=). The changes match our semantics.

Close #55297

Reviewed by: jhenderson, keith

Differential Revision: https://reviews.llvm.org/D126133

diff --git a/llvm/docs/CommandGuide/llvm-nm.rst b/llvm/docs/CommandGuide/llvm-nm.rst
index 8fc2b21..d75cf2e 100644 (file)
--- a/llvm/docs/CommandGuide/llvm-nm.rst
+++ b/llvm/docs/CommandGuide/llvm-nm.rst
@@ -145,7 +145,7 @@ OPTIONS
 
  Show all symbols, even those usually suppressed.
 
-.. option:: --defined-only
+.. option:: --defined-only, -U
 
  Print only symbols defined in this file.
 
@@ -197,7 +197,7 @@ OPTIONS
 
  Show symbols in the order encountered.
 
-.. option:: --no-weak
+.. option:: --no-weak, -W
 
  Don't print weak symbols.
 

diff --git a/llvm/tools/llvm-nm/Opts.td b/llvm/tools/llvm-nm/Opts.td
index 6cb530d..60ac134 100644 (file)
--- a/llvm/tools/llvm-nm/Opts.td
+++ b/llvm/tools/llvm-nm/Opts.td
@@ -77,7 +77,7 @@ def : F<"r", "Alias for --reverse-sort">, Alias<reverse_sort>;
 def : F<"S", "Alias for --print-size">, Alias<print_size>;
 def : JoinedOrSeparate<["-"], "t">, HelpText<"Alias for --radix">, Alias<radix_EQ>, MetaVarName<"<radix>">;
 def : F<"u", "Alias for --undefined-only">, Alias<undefined_only>;
-def : F<"U", "Deprecated alias for --defined-only">, Alias<defined_only>, Flags<[HelpHidden]>;
+def : F<"U", "Alias for --defined-only">, Alias<defined_only>;
 def : F<"v", "Alias for --numeric-sort">, Alias<numeric_sort>;
 def : F<"V", "Alias for --version">, Alias<version>;
-def : F<"W", "Deprecated alias for --no-weak">, Alias<no_weak>, Flags<[HelpHidden]>;
+def : F<"W", "Alias for --no-weak">, Alias<no_weak>;